<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <link href="css/reset.css" rel="stylesheet">
    <link href="css/page5.css" rel="stylesheet">
    <title>课堂互动</title>
</head>
<body>
<!-- 总容器 -->
<div class="wrapper">
    <!-- 头部 -->
    <header>
        <div class="header-left" onclick="location.href='page1.html'">
            <p>&lt;</p>
        </div>
        <div class="header-text">
            <p>
                课堂互动
            </p>
        </div>
        <div class="header-right">
            <p>历史</p>
        </div>
    </header>
    <img src="img/page5-img.jpg" style="width: 50vw;display: flex;justify-content: center;align-items: center;margin-left: 25vw;padding-top: 20vw">
</div>
</body>
</html>